Analysis of Instantaneous P-Model Setups

Pascal Schneider

2021-08-05

Sanity check for analytical and numerical vcmax25

T_opt: Predictions - Observations

Formulations

Vcmax, Jmax: Kattge - Kumarathunge

Jmax limtation: Smith - Farquhar

Respiration

Scaling of Rd25

Temperature response

Other setups

Optimal and fixed ci

K19 setup

Simulated PPFD setup

## Computational time for analytical vcmax25 and best model:  5.53 s

Best Model

MNE subset only

Open Question: Smith - Farquhar

Numerical jmax worsens fit of farquhar because estimated jmax is lower which leads to underestimation of predicted tc_opt. Analytical and prescribed jmax thus create a better fit.
Using reported ppfd-conditions for experiment leads to a nice fit for farquhar including the 1:1 line in the slope’s CI but has a strongly reduced r^2

T_opt - T_growth

Best Smith

## $plot

## 
## $df_metrics
## [1] NA

Best Farquhar

## $plot

## 
## $df_metrics
## [1] NA

Numerical

## $plot

## 
## $df_metrics
## [1] NA

## Error in optim(par = par, fn = orig.fn, gr = orig.gr, lower = lower, upper = upper,  : 
##   L-BFGS-B needs finite values of 'fn'
## Error in optim(par = par, fn = orig.fn, gr = orig.gr, lower = lower, upper = upper,  : 
##   L-BFGS-B needs finite values of 'fn'
## Error in optim(par = par, fn = orig.fn, gr = orig.gr, lower = lower, upper = upper,  : 
##   L-BFGS-B needs finite values of 'fn'
## Error in optim(par = par, fn = orig.fn, gr = orig.gr, lower = lower, upper = upper,  : 
##   L-BFGS-B needs finite values of 'fn'
## Error in optim(par = par, fn = orig.fn, gr = orig.gr, lower = lower, upper = upper,  : 
##   L-BFGS-B needs finite values of 'fn'
## Error in optim(par = par, fn = orig.fn, gr = orig.gr, lower = lower, upper = upper,  : 
##   L-BFGS-B needs finite values of 'fn'

## $plot

## 
## $df_metrics
## [1] NA